Low pressure pump working principle

The teeth of the two gears of the gear pump separate from each other to form a low pressure, and the liquid is sucked in and sent to the other side along the wall of the casing. On the other side, the two gears close each other to form a high pressure to discharge the liquid.

Simple and compact structure, small size, light weight, good workmanship, inexpensive, self-absorption, insensitive to oil contamination, large speed range, can withstand shock loads, easy to maintain, the work can be

Radial force imbalance, flow pulsation, noise, low efficiency, poor interchangeability of parts, wear and tear is not easy to repair, and can not be used as a variable pump.

Working principle

Centrifugal pump work, the liquid filled pump casing, the impeller rotates at high speed, the liquid under the action of centrifugal force produces high speed, high speed liquid through the gradually expanding pump casing channel, the dynamic head of pressure into static head of pressure.

High efficiency and energy saving: the pump has high efficiency hydraulic shape line and high working efficiency.

Convenient installation and maintenance: vertical pipeline structure, the import and export of the pump can be installed like a valve in any position of the pipeline and in any direction, installation and maintenance is extremely convenient.

Smooth running, safe and reliable: the motor shaft and pump shaft are coaxial direct connection, high concentricity, smooth running, safe and reliable.

Stainless steel shaft sleeve: the position of the shaft seal is relatively easy to be corroded, once the directly connected pump shaft is corroded, it is easy to cause mechanical seal failure. The use of stainless steel bushings to avoid corrosion, improve shaft life and reduce operating and maintenance costs.

Bearing: the pump with the motor in the lower shaft extension end bearings using closed bearings, normal use, free of motor bearing maintenance.

Mechanical seal: mechanical sealing base parts are generally used in rubber bellows structure, the traditional mechanical seal on the shaft seal from the O-ring line seal to the rubber parts of the two face seal, in the clear water medium to improve the sealing effect.

Working principle:

Multistage centrifugal pumps and single-stage pumps, compared with the difference is that multi-stage pumps have more than two impellers, can be segmented multi-stage suction and pressure, so that the water will be raised to a very high position, the head can be increased or decreased according to the need for the number of stages of the pump impeller. Multi-stage centrifugal pump has vertical and horizontal two types, multi-stage centrifugal pump pump shaft is equipped with more than two impellers in series, it is relative to the general single-stage centrifugal pumps, can achieve a higher head.